Disc brake



FIG. 1 is a perspective view of our new disc brake;

FIG. 2 is another perspective view of our new disc brake, from the same side as that of FIG. 1 and at a different angle;

FIG. 3 is a side elevation view of our new disc brake of FIG. 1;

FIG. 4 is another side elevation view of our new disc brake of FIG. 1, the opposite side being a mirror image thereof; and,

FIG. 5 is a side elevation view of our new disc brake, from a side opposite that of FIG. 3. 

CLAIM The ornamental design for a disc brake, as shown and described. 